SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

My Hunter EC600 controller has been easy to use, and reliable until now. The display shows a NO regardless of what I do. I can't find any reference to this in the manual. If the controller is bad I will just replace it, but I was wanting confirmation that the problem wasn't something else.

Thanks in advance for your help.

Thanks for the reply. It does not say No AC, only NO. I had a different pdf of the manual that did not mention resetting the controller. I will try that when I get a chance and let you know the results. If that doesn't do anything I am going to try power cycling the AC.

I tried the -,>,PRG RESET sequence as per the manual. It cleared the no displayed, instead giving me a number for each switch position. And that was it. So I figured I didn't have much to lose here so I disconnected an A/C power lead. Of course the new battery I had put in and the internals held the display as it was with the numbers. OK, so leaving the power lead disconnected I disconnected the battery. Now we are getting somewhere. The display went blank. When I reconnected the battery it showed the clock and said No AC. I reconnected the A/C. I entered the correct time. Then I turned the switch and my stations, run times, start times were all still there. The sprinklers are running as I write this. Thanks again for your help. I will sure check you guys out when I need parts or equipment.